Solution : https://service.sap.com/sap/support/notes/1405783 (SAP Service marketplace login required)
Key words : 
\standaloneproxydc\_comp\src\proxy\tmorse, jdi\localdevelopment\dcs\demo, migrated nw04s webservice standalone, terms netweaver developer studio, deployable standalone proxy, netweaver developers studio, settings\i054822\workspace, symptom compilation fails, deployable proxies, compilation error
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